140791530 has 32 divisors (see below), whose sum is σ = 368618688. Its totient is φ = 34131200.

The previous prime is 140791513. The next prime is 140791531. The reversal of 140791530 is 35197041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (140791531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212991 + ... + 213650.

It is an arithmetic number, because the mean of its divisors is an integer number (11519334).

Almost surely, 2^140791530 is an apocalyptic number.

140791530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140791530 is an abundant number, since it is smaller than the sum of its proper divisors (227827158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140791530 is a wasteful number, since it uses less digits than its factorization.

140791530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426662.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 140791530 is about 11865.5606694332. The cubic root of 140791530 is about 520.2261467041.

The spelling of 140791530 in words is "one hundred forty million, seven hundred ninety-one thousand, five hundred thirty".